Security Function1-201.4.5 How to Set Encryption Keyword for PLC (1) The encryption setting for the PLC can be set only in online. Also, set the same encryption key for downloading a project containing encrypted blocks(PB). The following procedure describes the case that each program block (PB) has beenencrypted offline.PROCEDURE1. Select "Online" > "Download To PLC (Entire Project)" in the menu bar.The "Input Encryption Key" dialog box is displayed.2. Enter the encryption key, and press the [OK] button.Project information is transferred together with the encryption key.KEY POINTS When the encryption key does not match, "Passcode unmatch error"occurs. Double-clicking an encrypted program block (PB) online displays the"Decryption" dialog box. As necessary, the contents of the program blcok(PB) can be confirmed by entering the encryption key. It is not possible to edit only encrypted program blocks (PB) online. Forchanging them, switch to offline mode, edit and download them again.